Two basic circuits of photorelay b
Source: InternetPublisher:司马缸砸光 Keywords: relay BSP Updated: 2021/07/12
Photoelectric relays use photosensitive elements to convert light energy into electrical energy. Commonly used photosensitive components include photoresistors, photodiodes
, phototransistors, photovoltaic cells and photocoupler devices.
Photoelectric relays are divided into two circuits: light-on and dark-on. Light switching means that the relay is closed when the photosensitive element is exposed to light; dark switching means that the relay is closed when
the photosensitive element is not illuminated. Two basic circuits
of
photoelectric relays
- A small improvement on the ordinary refrigerator motor starting circuit
- Audio interface protection circuit
- Infrared detection alarm
- Car audio system anti-theft circuit
- Practical electric curtain remote control device
- Synthesize the forward and reverse control circuit of the motor using three AC contactors
- Home thermostat
- Control two contactors with one wire
- Solar Flash Light
- Making of a Rotating Mousetrap
- Electronic thermometer circuit
- Crop anti-frost circuit
- Rural fish farming control circuit
- Soil water shortage prompt circuit
- DC ammeter
- Proportional frequency discriminator circuit
- Simple AGC circuit in transistor radio
- ring amplitude modulation circuit
- Schiller oscillator circuit
- Inductive feedback oscillator circuit
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